Home / 10,879.25-15,013.46-5,911.25

Finding the Fourth Proportional to 10,879.25, 15,013.46 and 5,911.25

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Solution

The fourth proportional to 10,879.25, 15,013.46 and 5,911.25 is: 8,157.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.25 : 15,013.46 = 5,911.25 : x
  2. Step 2: Convert to fraction form
    10,879.25/15,013.46 = 5,911.25/x
  3. Step 3: Cross multiply
    10,879.25x = 15,013.46 × 5,911.25
  4. Step 4: Simplify right side
    10,879.25x = 88,748,285.87
  5. Step 5: Solve for x
    x = 88,748,285.87/10,879.25
  6. Step 6: Final answer
    x = 8,157.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.